I just received a particle count report as part of my BlackStone UOA. I posted the ISO Code 14/13/10 that accompanied the UOA. Today I got a letter in the mail with the actual particle count..

>=2 Micron 203>=5 Micron 75>=10 Micron 21>=15 Micron 8>=25 Micron 1>=50 micron 0>=100 Micron 0This is absolutely amazing to me, though I have seen few particle counts on here, this blows others out of the water. I have to say these filters are excellent and though expensive if you wait until they have a deal at AAP I highly recommend. My UOA link is http://www.bobistheoilguy.com/forums/ubb...;gonew=1#UNREAD

Save even more money by buying PureONE filters. They're the exact same thing internally but cheaper. Exact same filter media.

There is no way it is a P1 internally. I just don't see how that is possible with the claims Bosch D+ makes. It may be made by the same Co. but it is way nicer than a P1. I will try it eventually and do a particle count but Btanchors particle counts with P1 were not as good and it is a larger filter that is supposed to be more efficient. The size I use (P14610) has a less efficient rating than the larger P1's.

Fine filter, but @~$13.50 regular price for my 7-8k average OCI's, overkill. And for your 3.1k, though I didn't see a time interval, I'd say the same. JMO Not that familiar with reliabilty of UOA particle counts, but the numbers look good.

While the P1's may/may not show as good a UOA particle count, for the $3-5 price, the value for construction/efficiency, just works better for me. Haven't seen any published micron rating for the BDP, without it, one could only assume it's figured the same as the P1, but with the greater advertised holding capacity.

And it is true that the PL14610 has the higher micron number, it also has substantially more media area than the larger 14459, odd. Be curious to know the media area of the equivalent 3323 BDP.

All that said, I'll be using a BDP 3323 next OCI, as I picked 3 up for ~$4.50 each with 3 AAP PP oil/filter change specials, a deal for sure. So I'll get a close up look after use.

From what we've seen here the DP and P1 are about the same with the exception the DP has thicker media then the yellow P1 hence the dirt holding capability's clamed by DP,now is there something more then that to it? not sure but from the naked eye that's the only difference.

i know rob(river_rat)looked at these under a microscope but un sure if he looked at these two maybe he'll chime in.

there's plenty of posts and pics on these two filters using the search function.

Thank you all for the posts, I know it wasn't a long run and I got the report the day after I changed the filter. I was going to leave it on but my oil OCD made me think I had to change the filter. I am saving it to use again. That thing is just a well built filter and I really wonder if many could beat it. I am now officially recommending BD+ to anyone who asks. OTOH, it is probably my luck that BlackStone made a mistake.